This is the pre-peer reviewed version of the following article: Kerr, T. J., Benner, R., Woodward, J. H., Rigsby, W. E., & Windham, W. R.(1986). Chemical compostion and in vitro digestibility of biologically degraded peanut hulls. Journal of the Science of Food and Agriculture,37(7), 637-651. , which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/jsfa.2740370707/abstract.